$floor
The $floor operator returns the largest integer less than or equal to the specified number
$floor
The $floor operator returns the largest integer less than or equal to the specified number.
Examples
Consider this sample document from the stores collection.
{
"_id": "0fcc0bf0-ed18-4ab8-b558-9848e18058f4",
"name": "First Up Consultants | Beverage Shop - Satterfieldmouth",
"location": {
"lat": -89.2384,
"lon": -46.4012
},
"staff": {
"totalStaff": {
"fullTime": 8,
"partTime": 20
}
},
"sales": {
"totalSales": 75670,
"salesByCategory": [
{
"categoryName": "Wine Accessories",
"totalSales": 34440
},
{
"categoryName": "Bitters",
"totalSales": 39496
},
{
"categoryName": "Rum",
"totalSales": 1734
}
]
},
"promotionEvents": [
{
"eventName": "Unbeatable Bargain Bash",
"promotionalDates": {
"startDate": {
"Year": 2024,
"Month": 6,
"Day": 23
},
"endDate": {
"Year": 2024,
"Month": 7,
"Day": 2
}
},
"discounts": [
{
"categoryName": "Whiskey",
"discountPercentage": 7
},
{
"categoryName": "Bitters",
"discountPercentage": 15
},
{
"categoryName": "Brandy",
"discountPercentage": 8
},
{
"categoryName": "Sports Drinks",
"discountPercentage": 22
},
{
"categoryName": "Vodka",
"discountPercentage": 19
}
]
},
{
"eventName": "Steal of a Deal Days",
"promotionalDates": {
"startDate": {
"Year": 2024,
"Month": 9,
"Day": 21
},
"endDate": {
"Year": 2024,
"Month": 9,
"Day": 29
}
},
"discounts": [
{
"categoryName": "Organic Wine",
"discountPercentage": 19
},
{
"categoryName": "White Wine",
"discountPercentage": 20
},
{
"categoryName": "Sparkling Wine",
"discountPercentage": 19
},
{
"categoryName": "Whiskey",
"discountPercentage": 17
},
{
"categoryName": "Vodka",
"discountPercentage": 23
}
]
}
]
}Example 1 - Calculate the floor of total sales and discounts
To calculate the floor of the average sales volume for a given store and the floor of sales per category, run a query using the $floor operator to return the desired results.
db.stores.aggregate([{
$match: {
_id: "40d6f4d7-50cd-4929-9a07-0a7a133c2e74"
}
},
{
$project: {
name: 1,
averageSalesFloor: {
$floor: {
$divide: [
"$sales.totalSales",
{
$size: "$sales.salesByCategory"
}
]
}
},
categoriesWithFloorSales: {
$map: {
input: "$sales.salesByCategory",
as: "category",
in: {
categoryName: "$$category.categoryName",
floorSales: {
$floor: "$$category.totalSales"
}
}
}
}
}
}
])This query returns the following result:
[
{
"_id": "40d6f4d7-50cd-4929-9a07-0a7a133c2e74",
"name": "Proseware, Inc. | Home Entertainment Hub - East Linwoodbury",
"averageSalesFloor": 30372,
"categoriesWithFloorSales": [
{
"categoryName": "Sound Bars",
"floorSales": 2120
},
{
"categoryName": "Home Theater Projectors",
"floorSales": 45004
},
{
"categoryName": "Game Controllers",
"floorSales": 43522
},
{
"categoryName": "Remote Controls",
"floorSales": 28946
},
{
"categoryName": "VR Games",
"floorSales": 32272
}
]
}
]